155680885 has 16 divisors (see below), whose sum is σ = 189319680. Its totient is φ = 122886720.

The previous prime is 155680871. The next prime is 155680897. The reversal of 155680885 is 588086551.

It is not a de Polignac number, because 155680885 - 2⁷ = 155680757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179964 + ... + 180826.

It is an arithmetic number, because the mean of its divisors is an integer number (11832480).

Almost surely, 2^155680885 is an apocalyptic number.

It is an amenable number.

155680885 is a deficient number, since it is larger than the sum of its proper divisors (33638795).

155680885 is a wasteful number, since it uses less digits than its factorization.

155680885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 384000, while the sum is 46.

The square root of 155680885 is about 12477.2146330822. The cubic root of 155680885 is about 537.9539456991.

The spelling of 155680885 in words is "one hundred fifty-five million, six hundred eighty thousand, eight hundred eighty-five".